Walls

tArgs = {...}

if #tArgs ~= 2 then
  error("Usage: Walls <Height> <Length>")
end

x = 1
height = tArgs[1]
length = tArgs[2]/2
print("Building "..height.." high.")
print("Building "..tArgs[2].." long.")




function up()
 for i = 1,height do
  slot()
  turtle.up()
  turtle.placeDown()
 end
end

function down()
 for i = 1,height-1 do
  slot()
  turtle.down()
  turtle.placeUp()
 end
end

function spin()
 turtle.turnLeft()
 turtle.turnLeft()
end

function two()
 up()
 turtle.forward()
 turtle.down()
 down()
 turtle.forward()
 spin()
 turtle.place()
 spin()
end

function slot()
 x = 1
 while turtle.getItemCount(x) < 1 do
  x = x+1
  turtle.select(x)
 end
end

function wall()
 for i = 1,length do
  two()
 end
end

turtle.select(1)
wall()